Re: L2TP VPN ASA5520 Frequent Disconnects

It sounds like the pcs they are testing from are misconfigured. Both the L2TP over IPSEC and Cisco client connections use UDP/500 for the first packet. If the Cisco client is not working then UDP/500 is being blocked somewhere in the path. This means if the L2TP client is not configured correctly else if configured correctly then sending a UDP/500 packet we should be seeing it on the ASA. So please make sure you are client is configured correctly. Still you are getting problem then reset the ASA to factory default and rebuild the configuration & try it.

Re: L2TP VPN ASA5520 Frequent Disconnects

Please note that the remote clients are able to connect. I see their sessions clearly on the ASA. That is not the problem. The problem is that they can stay connected for hours, but then randomly disconnect. The disconnect happens with many different remote users, running either XP or Vista.

Re: L2TP VPN ASA5520 Frequent Disconnects

Hi,

we have the same issue. The of our examination was, that it was that the rekeying of IPSEC/ISAKMP occurs at the same time. Because if you have configured the both timers on a mutiple. If you configure the timers as following our test Clients work for days w/o interuption:

DocumentationCode download linksGoalRequirementLimitationsSupported ISR
and UCS-E ModelSupported ISRG2 and UCS-E Blades:Supported ISR4K and
UCS-E Blades:Step by Step ConfigurationConfigure one of the connectivity
options to access the Cisco IMC from the n...
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Question I am currently unable to specify "crypto keyring" command when
configuring VPN connection on my cisco 2901 router. The following
licenses have been activated on my router :
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Technolo...
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